alsa_sound: fix for SIP call mute issue.

-Mute VOIP through audio path is not supported by kernel,
 so calling setVoipMicMute() to disable ""Voip Tx Mute"" fails
-Mute VOIP by cleanning buffers read if setMicMute is set
-Remove mVoipMicMute and use mMicMute for voice and VOIP

Bug: 7213748
Change-Id: Ie2a200470c16da2e4ae991c0814ec8dfb4666833
Signed-off-by: Iliyan Malchev <malchev@google.com>
5 files changed
tree: 0a3e29132a8706d93a69ff35c0ead662819906ad
  1. alsa_sound/
  2. libalsa-intf/
  3. Android.mk